CAFÈ: a multicomponent audit and feedback intervention to improve implementation of healthy food policy in primary school canteens: a randomised controlled trial

- Yoong, Sze Lin; Nathan, Nicole; Janssen, Lisa; Preece, Sarah; Williams, Christopher M.; Wolfenden, Luke; Wiggers, John; Reilly, Kathryn; Oldmeadow, Christopher; Wyse, Rebecca; Sutherland, Rachel; Delaney, Tessa; Butler, Peter